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当前版本: oldturkey03 ,

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@pbsingh yes schematics are available since it seems like your board is a 820-2828. L9000 is a 250 ohm ferrite bead and it sits on the 12V supply line to the LCD. If you have a donor board, replace the connector. You also want to take a closer looks around C8655 and C8654 there seems to be something going on as well. Check the color of the testpoint. Note that it appears discolored as well. So, getting power from somewhere else may not be your solution. Replace the connector/cable and component and then carefully check your board.
 
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原帖由: oldturkey03 ,

文本:

@pbsingh yes schematics are available since it seems like your board is a 820-2828. L9000 is a 250 ohm ferrite bead and it sits on the 12V supply line to the LCD. If you have a donor board, replace the connector. You also want to take a closer looks around C8655 and C8654 there seems to be something going on as well. Check the color of the testpoint. Note that it appears discolored as well. So, getting power from somewhere else may not be your solution. Replace the connector/cable and component and then carefully check your board.

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